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author | Ryota MIBU <r-mibu@cq.jp.nec.com> | 2015-11-26 23:48:06 +0900 |
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committer | Ryota MIBU <r-mibu@cq.jp.nec.com> | 2015-12-02 00:14:07 +0900 |
commit | 4b620af0a7c1b34f42241195661627304e993236 (patch) | |
tree | 24dc64ad4ca0548d697d40f7ebd6db627f9448a4 /docs/requirements/01-intro.rst | |
parent | c2f8523fe12c93813b8e459d093f0111c9dc1f31 (diff) |
change dirs to use new opnfv doc build script
Change-Id: Icfc17b1370fc111e0e9919f2f1c1d9ea8aee2702
Signed-off-by: Ryota MIBU <r-mibu@cq.jp.nec.com>
Diffstat (limited to 'docs/requirements/01-intro.rst')
-rw-r--r-- | docs/requirements/01-intro.rst | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/docs/requirements/01-intro.rst b/docs/requirements/01-intro.rst new file mode 100644 index 00000000..2190fdf7 --- /dev/null +++ b/docs/requirements/01-intro.rst @@ -0,0 +1,48 @@ +Introduction +============ + +The goal of this project is to build an NFVI fault management and maintenance +framework supporting high availability of the Network Services on top of the +virtualized infrastructure. The key feature is immediate notification of +unavailability of virtualized resources from VIM, to support failure recovery, +or failure avoidance of VNFs running on them. Requirement survey and development +of missing features in NFVI and VIM are in scope of this project in order to +fulfil requirements for fault management and maintenance in NFV. + +The purpose of this requirement project is to clarify the necessary features of +NFVI fault management, and maintenance, identify missing features in the current +OpenSource implementations, provide a potential implementation architecture and +plan, provide implementation guidelines in relevant upstream projects to realize +those missing features, and define the VIM northbound interfaces necessary to +perform the task of NFVI fault management, and maintenance in alignment with +ETSI NFV [ENFV]_. + +Problem description +------------------- + +A Virtualized Infrastructure Manager (VIM), e.g. OpenStack [OPSK]_, cannot +detect certain Network Functions Virtualization Infrastructure (NFVI) faults. +This feature is necessary to detect the faults and notify the Consumer in order +to ensure the proper functioning of EPC VNFs like MME and S/P-GW. + +* EPC VNFs are often in active standby (ACT-STBY) configuration and need to + switch from STBY mode to ACT mode as soon as relevant faults are detected in + the active (ACT) VNF. + +* NFVI encompasses all elements building up the environment in which VNFs are + deployed, e.g., Physical Machines, Hypervisors, Storage, and Network elements. + +In addition, VIM, e.g. OpenStack, needs to receive maintenance instructions from +the Consumer, i.e. the operator/administrator of the VNF. + +* Change the state of certain Physical Machines (PMs), e.g. empty the PM, so + that maintenance work can be performed at these machines. + +Note: Although fault management and maintenance are different operations in NFV, +both are considered as part of this project as -- except for the trigger -- they +share a very similar work and message flow. Hence, from implementation +perspective, these two are kept together in the Doctor project because of this +high degree of similarity. + +.. + vim: set tabstop=4 expandtab textwidth=80: |